5x(x-y)-(4Y-x)^2因式分解

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5x(x-y)-(4Y-x)^2因式分解5x(x-y)-(4Y-x)^2因式分解5x(x-y)-(4Y-x)^2因式分解=5x^2-5xy-16y^2+8xy-x^2=4x^2+3xy-16y^2不知

5x(x-y)-(4Y-x)^2因式分解
5x(x-y)-(4Y-x)^2
因式分解

5x(x-y)-(4Y-x)^2因式分解
=5x^2-5xy-16y^2+8xy-x^2
=4x^2+3xy-16y^2
不知干嘛

5x(x-y)-(4Y-x)^2
= 5X^2-5XY-16Y^2+8XY-X^2
= 4X^2+3XY-16Y^2

5x(x-y)-(4y-x)^2
=5x^2-5xy-(16y^2-8xy+x^2)
=5x^2-5xy-16y^2+8xy-x^2
=4x^2+3xy-16y^2

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